Editing AST (section)

==Science and technology==
* [[Attention schema theory]], of consciousness or subjective awareness

===Computing===
* [[Abstract syntax tree]], a finite, labeled, directed tree used in computer science
* [[Anamorphic stretch transform]], a physics-inspired signal transform
* [[Andrew S. Tanenbaum]] (born 1944), American-Dutch computer scientist, sometimes identified as "ast" 
* [[Asynchronous system trap]], a mechanism used in several computer operating systems
* [[Application security|Application security testing]], testing the operation and security of a software application
* [[Application security|Application support team]], a team of application support analysts supporting IT services delivered to users within an organisation, enabling the required operational processes needed for the business to be successful.

===Medicine===
* [[Aspartate transaminase]], an enzyme associated with liver parenchymal cells
* [[Antibiotic sensitivity testing]] or antibiotic susceptibility testing, the measurement of the susceptibility of bacteria to antibiotics

===Mathematics===
* [[Alternative set theory]]
* [[Alternating series test]]